NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives.

Hosted by renowned astrophysicist Neil deGrasse Tyson, Cosmos will explore how we discovered the laws of nature and found our coordinates in space and time. It will bring to life never-before-told stories of the heroic quest for knowledge and transport viewers to new worlds and across the universe for a vision of the cosmos on the grandest scale. Cosmos will invent new modes of scientific storytelling to reveal the grandeur of the universe and re-invent celebrated elements of the legendary original series, including the Cosmic Calendar and the Ship of the Imagination. The most profound scientific concepts will be presented with stunning clarity, uniting skepticism and wonder, and weaving rigorous science with the emotional and spiritual into a transcendent experience.

Welcome to the greatest story that's never been told. In a new, ground breaking series we'll be telling the story of the planets as never before.Alongside the most accurate and detailed imagery ever produced, The Planets using the latest planetary science research to piece together the gripping history of each world. These are stories of beauty and creation, violence and destruction that reveal the solar system and our place within it to be far more dramatic than we could ever have imagined.

"Unacknowledged" focuses on the historic files of the Disclosure Project and how UFO secrecy has been ruthlessly enforced-and why. The best evidence for extraterrestrial contact, dating back decades, is presented with direct top-secret witness testimony, documents and UFO footage, 80% of which has never been revealed anywhere else. The behind-the-scenes research and high-level meetings convened by Dr. Steven Greer will expose the degree of illegal, covert operations at the core of UFO secrecy. From briefings with the CIA Director, top Pentagon Generals and Admirals, to the briefing of President Obama via senior advisor John Podesta, chairman of the Hillary Clinton Campaign, we take the viewer behind the veil of secrecy and into the corridors of real power where the UFO secrets reside. The viewer will learn that a silent coup d'état has occurred dating back to the 1950s and that the Congress, the President and other world leaders have been sidelined by criminal elements within the military-industrial-financial complex.

How the Universe Works is the greatest story ever told, the creation of everything us. The programme investigates how the Universe came into existence out of nothing, and how it grew from a miniscule point, smaller than an atomic particle, to the vast cosmos we see today.

This documentary examines unidentified aerial phenomenon. With testimony from high-ranking government officials, and NASA Astronauts, Senator Harry Reid says it "makes the incredible credible."

A new breed of explorer has taken space travel beyond the moon to unlock and reveal first-ever views of alien worlds and cosmic bodies far beyond anyone's imagination. Space's Deepest Secrets shares stories of the men and women who pushed their ingenuity and curiosity to uncover some of the most groundbreaking findings in the history of space exploration. Hourlong episodes cover NASA's New Horizons mission to Pluto, the Hubble Telescope, the twin Voyager explorations, and other past, current and future missions and projects.

The year is 2033, and humanity's first crewed mission to Mars is about to become a reality. As a clock counts down the final 90 seconds to landing, an expert crew of astronauts endures the final harrowing moments before touching down on the red planet. Even with the best training and resources available, the maiden crew of the Daedalus spacecraft must push itself to the brink of human capability in order to successfully establish the first sustainable colony on Mars. Set both in the future and in the present day, the global miniseries event MARS blends feature film-caliber scripted elements set in the future with documentary vérité interviews with today's best and brightest minds in modern science and innovation, illuminating how research and development is creating the space technology that will enable our first attempt at a mission to Mars.

Unearthed decodes mysteries and combines scientific investigations with CGI animation to reveal the hidden secrets of iconic structures and monuments from around the globe -- ancient and present-day. The show explores how they were designed, built, used, and in some cases, lost and rediscovered. At critical points in each episode, stunning "blow apart" CGI animation deconstructs the structures to reveal hidden anatomy while exploring the secret history of each edifice, immersing us in the age and culture in which they were constructed.Archeologists travel to various parts of the world, in search of ancient secrets of mysterious civilizations. From the tallest pyramids to an underwater city, experts take viewers on an unforgettable journey.Unearthed fuses elements of engineering, history, geology, and archaeology, revealing the deepest secrets of each structure. We'll see the latest technology used to solve mysteries such as how the Parthenon still stands against earthquakes; how sticky rice was used to build the Great Wall of China; and what sacred secret lies beneath the Mayan temples of Chichen Itza.They may be older structures, but scientists and archaeologists use the latest technology including LiDAR scanning, X-ray imaging, carbon dating, and 3D printing techniques to reveal secrets of the past in ways that weren't possible before. Unearthed shows the future of science and technology are key to understanding our past, and without these developments, we wouldn't be able to unravel some of the world's greatest mysteries.

Project Blue Book is based on the true, top-secret investigations into Unidentified Flying Objects (UFOs) and related phenomena conducted by the United States Air Force from 1952 to 1969.
Dr. J. Allen Hynek, a brilliant yet underappreciated college professor, is recruited by the U.S. Air Force to spearhead a clandestine operation called Project Blue Book. Along with his partner, the debonair Air Force Captain Michael Quinn, he is summoned to investigate UFO sightings around the country and use science to discover what really happened. However, when some encounters cannot be explained away and cases remain open, Hynek begins to suspect that he has been duped by the government into a larger conspiracy to cover up the truth.

UFO explores unsettling theories of a subject that recently reached national headlines, and has historically been the focus of powerful politicians and CEOs, while average citizens pursuing the very same truth have been ridiculed and ostracized.Ignited by the bombshell New York Times story in 2017 revealing that the Pentagon had been secretly tracking UFOs for years, the series examines the history of the phenomenon through cultural and political touchpoints, including shocking testimony from eyewitnesses across the country. As the conversation grows more bizarre and reaches the mainstream by virtue of credible investigations into alien encounters, UFO confronts the most enigmatic questions of all: Why do we believe what we believe? And what is the elusive truth beyond this decades long mystery? 

Gaining full and unprecedented access to one of the most infamous and secretive hotspots of paranormal and UFO-related activities on earth, The Secret of Skinwalker Ranch will feature a team of scientists and experts who will conduct a thorough search of this infamous 512-acre property located in Utah's Uinta Basin. They will attempt to find out the truth behind more than 200 years of mysteries - involving everything from UFO sightings and paranormal activities to animal mutilations and Native American legends of a shape-shifting creature known simply as The Skinwalker.

In conjunction with the first total solar eclipse in the continental U.S. in 99 years, Science Channel celebrates by presenting a definitive series on Earth's closest neighbors in the solar system, The Planets. Former NASA astronaut Mike Massimino hosts, guiding viewers through eight, hourlong episodes that detail Venus, Mars, the newly discovered Planet 9, Exoplanets and more. A best-selling author, Massimino is a veteran of two missions in the Hubble Space Telescope and four space walks. He's also credited as the first person to tweet from space.Renamed The Planets and Beyond with Season 2, Astronaut Mike Massimino continues the exploration of the planets in our solar system and beyond. From the Gas Giants to mysterious exo-planets light years away, this is the definitive series about alien worlds.

There are some places on earth where the land just seems different, and Blind Frog Ranch in eastern Utah is one of those places. Locals say the land is cursed. That it's trying to hold on to something. From Aztec treasure to caverns of gold and silver to lost Mormon mines, legends surround Duane Ollinger's 160-acre ranch in Utah's Uintah Basin. But Duane isn't concerned with the lore. After discovering a system of seven underground caves that run through his property, he is singularly focused on finding what's hidden in them - no matter what the cost.

Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?

The first inhabited mission to Mars is approaching the red planet. On board, high-level scientists and a young psychologist supervise their mental safety. But at the moment of launching the landing, an incident occurs...

In Expedition X, Josh Gates joined by scientist Phil Torres and paranormal researcher Jessica Chobot to investigate reports of supernatural encounters, mysterious creatures, and astonishing extraterrestrial phenomena. Whether trekking through the remote jungles of Cambodia in search of a legendary ape-man or exploring the secrets of the world's largest cave system right here in the United States, the Expedition X team is taking viewers to the stranger side of the unknown.

In the hit series Expedition Unknown, Travel Channel's witty explorer Josh Gates seeks answers to some of the world's most captivating unsolved stories and legends. Gates is on a mission to find the truth behind each iconic legend, digging through years of historical evidence, facts and myths. Leaving no stone unturned, his adventures take him around the globe as he immerses himself in the core locales linked to each tale. From excavating ruins in search of the real Robin Hood to sailing the high seas investigating Christopher Columbus and exploring Nepal's "sky caves" for Shangri La, Gates' archaeological background and ubiquitous sense of humor generate a new take on age-old stories.

The Sphinx. El Dorado. The Shroud of Turin. Our world holds remarkable relics that are full of secrets, written in stone, gold, and blood. Discovering the truths behind their mysteries could change history as we know it. Join us as we travel the globe and come face-to-face with these puzzling treasures. We explore hidden corners, decipher ancient documents, and apply groundbreaking research and forensic techniques with one goal in mind: to discover the truth about these fabled cities, monuments, and remnants, and to share it with the world.

Some of the most amazing, eye-opening and downright scary paranormal videos from around the world are featured as a panel of experts break down the footage and analyze what exactly the eyewitnesses captured.

A century of illegal UFO secrecy has cost humanity hundreds of years of spiritual, cultural and technological development.

Arthur C. Clarke's Mysterious World is a British television series looking at unexplained phenomena from around the world. Each program is introduced and book-ended by science fiction writer Arthur C. Clarke in short sequences filmed in Sri Lanka. The bulk of the episodes are narrated by Gordon Honeycombe. 

The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

Our team of astronomers tell us what's on view in the night sky. From comets to quasars, there is always something fascinating to discuss in the Universe.

Leonard Nimoy, hosts and narrates this documentary series that takes you to the world of Unsolved Mysteries and those strange and unusual things in the world that defy explanation and often understanding. The world is filled with unexplained mysteries, paranormal phenomena, strange creatures, and other things that go bump in the night. The topics are entertaining and engrossing. Lost civilizations, extraterrestrials, myths and monsters, missing persons, magic and witchcraft, unexplained phenomena. In Search Of cameras travel the world, seeking out these great mysteries. This program was the result the work of scientists, researchers and a group of highly-skilled technicians and results in a series of programs that are varied and each is worth viewing..

One Strange Rock is the extraordinary story of Earth — our curiously calibrated, interconnected planet — and why it is special and uniquely brimming with life among a largely unknown but harsh cosmic arena. Anchoring the series is an elite group of astronauts who see Earth's bigger picture; they provide unique perspectives and relate personal memoirs of our planet seen from space.

Hunters have disappeared from wildlands without a trace for hundreds of years. David Paulides presents the haunting true stories of hunters experiencing the unexplainable in the woods of North America.

In 1989, physicist Bob Lazar broke the story of Area 51 and the US government's work on alien spacecrafts. He blew the whistle, shocked the world, then went silent - until now.

Maritime mysteries -- old and new -- come to life in this 10-episode series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas, and oceans around the world. Innovative technology allows viewers to see what lies on the floors of large bodies of water such as the Gulf of Mexico, the Nile, the Indian Ocean, the Baltic Sea, and the Atlantic Ocean as if they had been drained. Then, in a quest to explain natural wonders and man-made catastrophes, stories tell of how vessels sank, what ancient geological formations reveal about life on Earth, where Nazi secrets now reside, and why so many continue to search for the legendary city of Atlantis.Pull the plug on the ocean to reveal hidden secrets and lost worlds. Using groundbreaking technology, breathtaking photography, and insights from top marine archaeologists, Drain the Oceans delivers penetrating new insights into the epic history of human civilization and the deepsea world, exposing sunken cities, shipwrecks, and amazing natural wonders of the deep.

Challenger: The Final Flight examines the 1986 Challenger space shuttle, which tragically broke apart 73 seconds after launch as millions of Americans watched live on television. Incorporating never-before-seen interviews and rare archival material, this series offers an in-depth look at one of the most diverse crews NASA assembled, including high school teacher Christa McAuliffe, who was selected to be the first private citizen in space.

Skinwalker Ranch is now widely considered to be ground zero for UAP activity and high strangeness. Since 2020, Dr. Travis Taylor along with Erik Bard and their investigative team have been working around the clock to collect, analyze and decode as much data as possible associated with the phenomenon occurring at the site. Their experiments have yielded amazing results, but not enough to fully unlock the secret of the ranch. So, for the first time ever they have decided to expand their search for answers. In an effort to gain a broader perspective and build larger data sets, the Skinwalker team is adding two team members and taking the offensive by pursuing evidence of similar phenomena found at analogous sites around the country. No longer content to sit, waiting to be targeted…it's time to go Beyond Skinwalker. 

Alaska is a hotbed for UFO sightings, abductions and extraterrestrial encounters. Why are these otherworldly visitors drawn to America's last frontier? Shocking new evidence and personal testimony from local witnesses shed light on the alien activity.

Using new research and 3D technology, this UK production explores some of the most perplexing and unusual artefacts from ancient and modern history. Objects are pulled apart, with even the smallest details examined, and lost or damaged artefacts are rebuilt to uncover their secrets. Strangest Things reveals the unbelievable, the ancient, and the truly bizarre currently hidden away in museums, laboratories, and storage rooms around the world.

Experience the extraordinary…in our planet's own backyard. Wonders explores some of the most amazing features of our very own solar system – how the forces of nature carved out beauty and order from the chaos of space; how our home planet doesn't sit in magnificent isolation but is intimately connected with the rest of the solar system; and how these connections have created the haven we call Earth. Using the latest scientific knowledge and breathtaking images beamed back from the fleet of probes, rovers and telescopes currently in space, this gorgeous imagery, paired with some of the most spectacular and extreme locations on Earth, help to reveal wonders never thought possible.

Despite being one of the most studied civilizations, rich in history, culture, science and art, much of Ancient Egypt remains a great mystery. Many modern-day customs and technologies have their roots in Ancient Egypt, yet the details about their way of life remain a mystery. On Egypt's Unexplained Files, experts dive deep into the secrets of Ancient Egypt, and use cutting-edge archaeological technology to reveal the hidden truths that could potentially answer questions that have befuddled Egyptologists for generations.

Cameras in space tell stories of life on our planet from a brand new perspective, revealing new discoveries, incredible colours and patterns, and just how fast it is changing.

In UFOs: The Lost Evidence, current and former government officials, pilots and astronauts come forth to share evidence of humanity's contact with the extraterrestrial.

Secrets of the Solar System explores the greatest set of journeys humankind has ever taken, on a quest to answer the deepest of questions: where do we come from? How was the solar system formed? Are we alone in the universe?

On its fiftieth anniversary, the events surrounding the actual Apollo 11 space mission are presented solely using archival footage and still photographs of or associated with the mission. The events span from the eleventh hour preparations for the launch to shortly after the safe touchdown of the capsule with its three astronauts back on Earth. The mission is historic as the first time humans had stepped on the surface of the Earth's moon. It arguably made household names of Neil Armstrong and Buzz Aldrin as the first and second to walk on the moon, and slightly less so for the third astronaut, Michael Collins, who remained inside the capsule at the time. It was arguably the most dangerous space mission at the time in part to the astronauts leaving the safety of the capsule.

See the ultimate guide to the Solar System from the dedicated people who sent spacecraft to explore the sun and the planets, and witness their astonishing tales of discovery as they reveal wonders never seen before.

The wildly successful and first-of-its-kind mystery docuseries Unsolved Mysteries is being revived by the original creators along with the producers of Stranger Things.This modern take on the classic series will maintain the chilling feeling viewers loved about the original, while also telling the stories through the lens of a premium Netflix documentary series. Each episode will focus on one mystery and once again will look to viewers to help aid investigators in closing the book on long outstanding cases.

Every year, the government funds clandestine programs collectively called the black budget. But what's exactly behind these secretive missions operating around the globe? Former CIA operative Mike Baker will dig into these mysterious programs each week in Black Files Declassified. With unprecedented access, Mike will look at different top-secret government program steeped in cutting edge science. Conducting his own research, speaking with journalists, experts, former government and black file officials and scientists, he'll stop at nothing to delve deeper into these black files than has ever been done before.

The series will reveal newly authenticated evidence and footage, interviews from eyewitnesses and former military personnel who have never spoken out before, and extensive breakthroughs in understanding the technology behind these unknown phenomena in our skies.

Some of the world's most incredible engineering projects now lie in ruins. These deserted places are home to extraordinary mysteries and untold secrets, and we revisit them to understand how they were built, and why they were abandoned.They were once some of the most advanced structures and facilities on the planet, standing at the cutting-edge of design and construction. Today they are abandoned, dangerous, some of them even deadly. From uninhabited cities to empty factories, these long-forgotten engineering marvels are scattered around the globe. Science Channel uncovers why some of the world's most advanced architectural achievements were eventually left behind in the all-new series Mysteries of the Abandoned.Each of the six, hour-long episodes of Mysteries of the Abandoned features stories behind engineering wonders, why they were built, and the reasons they were eventually left to crumble. Each story recalls the people who originally designed the structure, their historical significance, and why they were ultimately no longer of use. The premiere episode explores California's Goat Canyon Trestle railway, known as the 'Impossible Railroad,' that required the biggest wooden trestle bridge in the world; Ukraine's Duga, the notorious anti-ballistic missile radar, known as the 'Russian Woodpecker,' that still stands in within the Chernobyl Exclusion Zone; and the Grand Goulets Road in the French Alps, an astonishingly narrow and perilous mountain passageway.

New discoveries in the Amazon are revealing evidence of a long-lost civilization that built giant cities of untold treasures; with the help of cutting-edge tech and archaeology, experts investigate the clues these mysterious people left behind.

Heaven's Gate: The Cult of Cults is a thorough examination of the infamous UFO cult through the eyes of its former members and loved ones. This four-part docuseries uses never-before-seen footage and first-person accounts to explore "the cult of cults" that shocked the nation with its out-of-this-world beliefs. What started in 1975 with the disappearance of 20 people from a small town in Oregon ended in 1997 with the largest suicide on U.S. soil and changed the face of modern New Age religion forever. The 39 members of Heaven's Gate who died by suicide believed their souls would "graduate" to an alien spacecraft behind the Hale-Bopp Comet.

A made for television documentary series that explores in depth the planets that make up our solar system.

A documentary from Werner Herzog about meteors and comets and their influence on ancient religions and other cultural and physical impacts they've had on Earth.

As the UFO's suddenly hits the covers of Washington Post and NY Times in the age of "fake news" and conspiracy memes, how can we make sense of these revelations without losing grip on reality?. "Close Encounters of the Fifth Kind" is a feature documentary that is presented by the global authority on extraterrestrials who has created the world wide disclosure movement and routinely briefs the presidents and the heads of state on the ET phenomenon: Dr. Steven Greer. His preceding works: Sirius and Unacknowledged, broke crowdfunding records and sparked a grassroots movement. In this film, Dr. Steven Greer presents the most dangerous information that the architects of secrecy do not want you to know; how forgotten spiritual knowledge holds the key to humans initiating with highly advanced ET civilizations. This film features a large amount of groundbreaking video and photographic evidence and supporting interviews from some prominent figures such as legendary civil rights attorney Daniel Sheehan; Adam Curry of Princeton's PEAR Lab and Dr.Russel Targ who headed the CIA's top secret remote viewing program. Their Message: For several thousands of people, contact has begun. This is their story.

History's Greatest Mysteries will investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.

Doomsday: 10 Ways the World Will End looks at apocalyptic disasters so cataclysmic that if they happened today, they could extinguish the human race. From massive asteroid impacts to volcanic hyper-eruptions to sudden energy blasts from outer space, will you be ready? Can any of us survive?

Why were trunks belonging to genius inventor Nikola Tesla confiscated in 1943? Did they contain the plans for nearly free worldwide electricity, massive death rays, and other inventions out of the future? A new investigation driven by declassified CIA documents suggests a secret history of bitter rivalries, government conspiracies, Cold War and WW2 spycraft, extra-terrestrial communication, and amazing achievements of a truly gifted man – Nikola Tesla.

Arthur C. Clarke's Mysterious Universe was a television series looking at unexplained phenomena across the universe. The series is introduced by acclaimed science fiction writer Arthur C. Clarke in short sequences filmed at his home in Sri Lanka, with individual episodes narrated by Carol Vorderman.

Unsolved Mysteries explores unsolved cases in which you, the viewer, can call in or write and solve them. The show looks at cases such as: lost loves, missing persons, homicide, supernatural, the unexplained, wanted, etc. Unsolved Mysteries usually has four segments in one show, and sometimes shows updates. Unsolved Mysteries has solved 40% of their featured cases, that is 300 cases solved out of about 1,200.

For nearly 20 years, award-winning investigative journalist Christof Putzel has traveled the world uncovering some of the most hard-hitting stories of our contemporary times. He has exposed neo-Nazi attacks against immigrants in Russia, illegal American weapons sales to Mexican drug cartels, the tobacco industry's exploitation of children in Asia, and children used to mine gold in deadly labor camps in Congo. In each case he has used declassified government documents and key sources to bring shocking and important stories to light. In Travel Channel's Mission Declassified, Putzel uses his investigative tools and instincts to explore some of history's most notorious and speculated-upon mysteries.

Led by intrepid world adventurer Josh Gates, each episode of Destination Truth takes viewers on a trek across the globe as Josh investigates stories of the unexplained. Accompanied by his small crew, Josh dives into the local cultures and searches for clues to the existence of strange creatures and paranormal phenomena.

The Proof Is Out There takes an in-depth look at some of the most incredible and thought provoking videos of unexplained phenomena and mysterious must-see moments of all time. Each half-hour episode explores and analyzes the full story of each irregularity in question from bizarre footage of people seemingly immune to lightning, to a fifty-foot snake, apocalyptic sounds in a man's backyard, enigmatic creatures, and UFOS that split and dive underwater. Through expert examination and the use of the latest technologies, The Proof Is Out There aims to get to the bottom of what's real? What's fake? And everything in between.

Don Wildman combs through the vaults of the world's most prestigious institutions to unearth extraordinary artifacts with captivating, revealing and shocking mysteries that challenge our beliefs and defy expectations.

Jack Osbourne is determined to make his parents, Ozzy and Sharon, full-fledged paranormal believers. Dim the lights and settle in for fun, scares and unfiltered humor in Travel Channel's new series, The Osbournes Want to Believe. They might be known as the first family of darkness, but when it comes to the paranormal, legendary rocker Ozzy Osbourne and his wife, The Talk co-host Sharon Osbourne, are borderline skeptics. Determined to turn them fully to the other side, Jack reunites with Ozzy and Sharon to share the craziest, most jaw-dropping videos of supernatural activity ever caught on camera. But the question still remains if the Prince and Princess of Darkness will see the light when it comes to the paranormal, or if they think it's just another ride on the crazy train.

What on Earth? is a documentary series using satellite images of strange geological occurrences and man-made structures on Earth to examine such matters as the planet's extreme locations, phenomena and species.

Is Elvis still alive? Has extraterrestrial life really visited Earth? Is it possible that some people see religious statues move or bear the crucifixion wounds of Jesus? Experts and eyewitnesses explore some of the most-extraordinary happenings in recent history that science can't explain.
 

Documentary-drama recounting the Martian War of 1913 - 1917. Europe was on tenterhooks in the 2nd decade of the 20th century, everyone was expecting a Great War between the major European powers. But then, in 1913, something crashed into the forests of SW Germany. Troops were sent to investigate but were wiped out. Martian fighting machines began making their way across Western Europe and the countries of Europe combined forces to resist them. With aspects taken from "The War of the Worlds" by H.G. Wells and from WWI itself, this dramatisation presents a documentary style look at events as they unfolded and the effect they had of our world today. Lots of references to real events including the mass attacks and defeats as men were thrown against machines on the Western front, the Christmas truce and the Angel of Mons, America's isolationism and late entry into the conflict, the worldwide "Spanish" flu epidemic that killed more people than the war, and many other things.

For the first Time: Information you were never meant to know. Amazing UFO photos and footage you were never meant to see.

A look at a frightening condition that plagues thousands; sleep paralysis.

Archaeologist and historian Richard Miles explores the roots of civilisation in a series that runs from the creation of the first cities in Mesopotamia some 6,000 years ago, to the decline and fall of the Roman Empire.

A documentary showing the real science behind today's UFO phenomenon. Why are they talking about UFOs in Congress? What's behind all these videos? And most important of all: Are we being visited?

Alaska is the most sparsely populated of all the states. In a vast expanse of rugged wilderness, one area - known as The Alaska Triangle - has been home to so much unusual activity that it has struck fear across Alaska and the world. More people disappear in this area than anywhere else in the United States, with countless sightings of strange creatures, impossible moving lights in the sky, unexplained phenomena and even malevolent ghosts. Are lay lines and electromagnetic anomalies within the Triangle causing these bizarre events? Or is something more sinister at play? From strange reports of military personnel seeing UFOs and missing aircrafts that have vanished without a trace, to sightings of fearful monsters and an underground alien base hidden inside a mountain, each episode of The Alaska Triangle seeks to unlock the paranormal mysteries hidden within this foreboding location.

New information reveals the secret story of the Apollo 13 rescue, and how America's best minds used innovative science and engineering to save the lives of three astronauts facing life-or-death on one of NASA's most dangerous missions.

Biography of electrical inventor and visionary genius Nikola Tesla.

PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down the both the basic and incredibly complex sides of space and time.

Abductions, invasions, and conspiracies about aliens surround our world every day, from nightly news to video games to the latest box office hit. Delving into the "photoshopping" of space, the value of Wikileaks, and the role social media plays in alien stories, Unsealed: Alien Files offers a unique 360 degree look at how alien interaction may have affected our past, and how it will affect our future.

Chronicles Betty and Barney Hill alien abduction back in 1961.

Could a recently excavated, 12,000-year-old temple have propelled us out of the stone age and into the space age? Archaeologist Dr. Jeff Rose investigates an extraordinary find in Turkey.

Teams of experts in a variety of fields travel the world to probe some of mankind's most enduring mysteries. Who was Jack the Ripper? What was the purpose of Stonehenge? Why do planes and ships disappear in the waters of the Bermuda Triangle? The experts gather evidence, and a scientific team conducts a forensic study using the latest technologies. Their conclusions may result in a revision of history.

It is one of humankind's greatest achievements. More than 12 billion miles away a tiny spaceship is leaving our Solar System and entering the void of deep space - the first human-made object ever to do so.

Our world holds remarkable relics that are full of secrets, written in stone, gold, and blood. Discovering the truths behind these mysteries could change history as we know it. Join host Adam Mastrelli as he brings us face-to-face with these puzzling treasures. Explore hidden corners of the world, decipher ancient documents, and apply groundbreaking research and forensic techniques in our quest to discover the truth about these fabled cities, monuments, and remnants.

Ezekiel saw the wheel. This is the wheel he said he saw. These are Unidentified Flying Objects that people say they are seeing now. Are they proof that we are being visited by civilizations from other stars? Or just what are they? The United States Air Force began an investigation of this high strangeness in a search for the truth. What you are about to see is part of that 20-year search.Two agents of the U.S. Government's Project Blue Book project investigate sightings of extraterrestrials and unidentified flying objects.Project U.F.O. is an American anthology television series which ran on NBC from 1978 to 1979. Running for two seasons of 13 episodes each, the show was based loosely on the real-life Project Blue Book. The show was created by Jack Webb, who pored through Air Force files looking for episode ideas.In the style of Jack Webb (Executive Producer), stories were taken from the USAF's "Project Bluebook" files and dramatized. The producer of the program, Col. William T. Coleman, USAF (Ret.) was the former head of "Project Bluebook".

Documentary looking at the work of the U.S. government department the Advanced Aerospace Threat Indentification Program, which investigates sightings of unidentified aerial phenomena.

Applying the laws of life on Earth to the rest of the galaxy, this series blends science fact and fiction to imagine alien life on other planets.

In Mysteries at the Museum, Don Wildman visits America's museums, where strange and curious remnants of the past are revealed.

In the 1960s, the "Original 7" astronauts were both rock stars and daredevils. With movie star looks and a penchant for sports cars, Gordon Cooper was the youngest and the flashiest of the bunch. As a space pioneer, he first took orbit in Mercury-Atlas 9, setting a record that still holds today for the longest solo space flight in US history. During one of his key missions, while Cooper claimed to be scouring the globe for nuclear sites, he actually discovered something else: shipwrecks. Working for decades in secret, using the information he collected while orbiting the Earth, Cooper created a document that he thought could lead to unimaginable wealth – a treasure map from space. Uncover the truth – and the treasure – when Cooper's Treasure premieres on the Discovery Channel. Before passing away, Cooper shared his secret with long-time friend Darrell Miklos with the hope that his exploration would continue and the treasure would ultimately be found. Miklos is now setting out on a personal quest to fulfill the legacy of his lost mentor, once and for all realizing Cooper's long-held dream and proving to the world that the mysterious documents hold the key for a new generation of explorers.

From innocent travelers to the woods who find themselves in a frightening clash with forces not of this world, to determined investigators who deliberately seek out mysterious beings that dwell in the hinterlands, Evil Encounters delivers heart-stopping, terrifying tales of people out in nature who find themselves in the wrong place, at the wrong time, in places far from civilization where no one can hear you scream.

Strange Evidence investigates mysteries caught on tape and uncovers the science behind some of the most bizarre occurrences ever recorded.Worldwide, 300 million surveillance cameras are watching us, on our streets, at work, and in our homes. At times, they capture images that don't seem to follow the normal laws of physics. This series investigates mysteries caught on tape and uncovers the science behind some of the most bizarre occurrences ever recorded. With a team of experts analyzing footage that seems to defy explanation, including levitating cars on a freeway, a statue that appears to move on its own, and a spontaneous burst of flames with no apparent ignition sources. But will the surveillance footage provide investigators with the evidence they need for a definitive earthly answer?

Investigative journalist Paul Beban steps into the unknown to find answers to the world's greatest paranormal mysteries. Using declassified government documents, inside sources and daring determination, he'll stop at nothing to expose the truth.

This September, four civilians will launch into space for a three-day trip orbiting Earth and reaching an altitude higher than that of the International Space Station (ISS). The SpaceX Dragon mission, dubbed Inspiration4, is the most ambitious step to date in the rapidly-developing age of civilian space exploration, making history as the first all-civilian mission to orbit.

This 1975 NASA documentary narrated by the great Orson Welles delves into the possibilities of extraterrestrial life as gleaned from the results of planetary probes, interstellar discoveries and findings about the nature of life itself.

Uncover the secret conspiracy linking America's power elite. What are its implications on future generations of American citizens?

This documentary examines whether UFOs are real. It examines over 250 amateur video clips, evaluates several recent revelations about Roswell, and examines footage of the removal of an alien implant.

Go beyond the lost human history! A profile and examination of the recent findings of a highly advanced human settlement submerged at the end of the Ice Age when the sea level rose. The story of Atlantis has its roots in actual historical events!

What lies beneath the mythical triangle? With the aid of data from sophisticated sonar surveys, National Geographic explores what the ocean floor looks like below the Bermuda Triangle.

Phil Schneider died in 1996. Previous to his death he had been on tour across the United States speaking out about various subjects including his involvement with building a secret underground base in Dulce, New Mexico for the military. During this time, he was said to have had an encounter with a violent E.T race in the late 1970's which would change his whole life immediately after. This documentary explores some of the information Phil Schneider spoke about to the public in the 1990's by examining each claim in detail with expert opinions from Richard Dolan, Richard Sauder, and Cynthia Drayer (Phil's Ex-Wife). In this documentary you will find never before published photo's of Phil's Autopsy, documents about the Philadelphia Experiment from Oscar Schneider's files (Phil's father) and a very well explained background about Underground Bases.

A documentary about aliens and UFOs with re-enactments of alien interviews and video of a supposedly real video of an alien being interviewed by government officials.

In 2008, two best friends stepped into their very first crop circle in southern England. This is story of what happened next.

Brian Cox tackles some of the most challenging and intriguing questions facing science today by using his best material from past programmes and the latest scientific research.

Archeologists are astonished about a breaking discovery in Egypt generating unprecedented headlines around the world. In Saqqara, just outside of Cairo, buried 36 feet deep, an incredible 27+ sarcophagi were recently found. Untouched and unopened for over 2,500 years, they retained their original color. Deemed as one of the most remarkable sites found in recent history, Smithsonian Channel has cameras on the ground with exclusive access to document this historical revelation for Tomb Hunters (w/t).

Space inspires awe and wonder, but it also can be scary... and lethal. Supermassive black holes, deadly gamma-ray bursts, rogue asteroids, dark energy, supernovas... Our world is under attack from above. It's like a ticking time bomb. Killers of the Cosmos takes a film-noir approach to these threats, mixing scripted, animated drama with top experts in the fields of astronomy, astrophysics, biology, cosmology, and planetary science.Aidan Gillen steps in as our gumshoe detective. In each episode, he's got a case to solve, with a different killer to identify and track down. But first, he needs evidence. Aided by a mysterious informant, he investigates each disaster-in-the-making via a wide range of experts who've studied some of science's most unbelievable wonders. 

Inspired by the iconic 1970s series, In Search Of will examine unexplained phenomena from all over the world. Each episode will follow Zachary Quinto as he investigates a different subject within a dynamic theme - such as alien encounters, mysterious creatures, UFO sightings, time travel and artificial intelligence - and searches for the truth to some of the world's greatest mysteries.

There are those who believe it is not humanity's destiny to wither away within the clutches of Earth's cycles of life and extinction. Rather we are to venture forth, beyond our terrestrial origins and establish thriving civilizations throughout the cosmos. Some have already secretly realized this vision, while others are relegated to technology dependent upon dwindling resources. A conflict now rages whether to preserve these advancements for the ranks of the elite, or to share this destiny with the whole of humanity and usher in a new era of peaceful conscious advancement.

What if the history you knew was only half the story? Brad Meltzer's Decoded investigates the other half: the secret history of the symbols and codes that surround us everyday. Best-selling author Brad Meltzer has been writing novels for more than a decade. He has studied and written about some of the most revered institutions and documents in human history, including the U.S. Supreme Court, the Presidency, the Secret Service, Wall Street and the Bible. Brad has assembled a team to investigate the countless clues and theories uncovered through his years of research, but unexplored until now. From the dollar bill to the first Presidential Codes, the hidden messages of the Statue of Liberty and the ciphers protecting the location of lost Confederate gold, the team uncovers the truth behind history's most provocative secrets.